User experience (UX) design should be incorporated into all projects, regardless of size. For small projects, UX design can be informal through visualization and user feedback. Mid-sized projects benefit from clickable wireframes, weekly workshops, and just-in-time UX design. Large projects require design authority, regular UX meetings, proximity within teams, and high-fidelity simulations. Across all projects, the key is to quickly visualize and validate ideas through iteration and user involvement. UX design is not a separate role but a shared responsibility of the entire team.